I just got a TBS Discovery and with my GoPro and all the FPV gear it's kinda sluggish with these 3s batteries and stock DJI motors so I ordered 4s batteries.

These batteries have never been in a crash. I did have 6 batteries and my F450 broke a prop and my quad crashed in the sand on the beach and the battery case got a tear in it. I'm sure it was fine but I didn't want to chance it so I threw the battery away.

These batteries are in great shape and have always been balanced charged at only 2c and never ran down below 80%.

They have 26, 25, 25, 24, 23 flights on them. When new, I would get 8 minutes on my F450 at 80% and now I get just over 7 minutes 30 seconds so they haven't degraded very much at all.